Craig Mayer, Nick WIlliams, Vojtech Huser
Lister Hill National Center for Biomedical Communications, National Library of Medicine, NIH, Bethesda, MD

See the full regCTG repository at https://github.com/lhncbc/CRI/tree/master/regCTG

To return to the list of conditions and view other reports go to https://lhncbc.github.io/CRI/regCTG/regCTG-condition_report_links.html

Study Counts

Type	Study_count
Total_Studies	1882
interventional	1444
Observational	407
Registry	31

Studies over Time

```

Interventional Trials

Intervention Type

intervention_type	Study_Count
Drug	805
Drug\|placebo	218
Biological	196
Other	37
Behavioral	34
Biological\|Drug	31
Biological\|Drug\|placebo	22
Biological\|placebo	13
Procedure	13
Dietary Supplement	11
Device	10
Drug\|Other	6
Behavioral\|Other	5
Biological\|Other	5
Device\|Drug	5
Biological\|Procedure	4
Diagnostic Test	4
Dietary Supplement\|placebo	4
Other\|Procedure	3
Behavioral\|Biological	2
Behavioral\|Drug	2
Dietary Supplement\|Drug	2
Drug\|Procedure	2
Behavioral\|Diagnostic Test	1
Biological\|Drug\|Other	1
Biological\|Drug\|Procedure	1
Biological\|Other\|placebo	1
Device\|Other	1
Diagnostic Test\|Drug	1
Dietary Supplement\|Drug\|Procedure	1
Dietary Supplement\|Other	1
Drug\|Other\|Procedure	1
Genetic	1

Count of Studies by Intervention (normalized and mapped)

Interventions over Time

Weekly studies for each intervention

Studies by Country

Country	Study_Count
United States	281
NA	211
China	107
Korea, Republic of	44
United States\|Puerto Rico	42
Taiwan	39
Japan	34
France	30
Canada	27
Egypt	25
India	25
Belgium	22
Germany	22
Spain	22
United Kingdom	19
Iran, Islamic Republic of	14
Russian Federation	14
Australia	13
Brazil	13
Thailand	13
Italy	12
Netherlands	12
United States\|Canada	12
Austria	8
New Zealand	8
Hong Kong	7
Vietnam	6
Australia\|New Zealand	5
Belgium\|France	5
Israel	5
Singapore	5
Sweden	5
China\|Korea, Republic of	4
Denmark	4
Mexico	4
Poland	4
Switzerland	4
Belgium\|Czech Republic\|Hungary	3
Belgium\|Germany	3
Norway	3
Pakistan	3
Philippines	3
Puerto Rico	3
Turkey	3
United States\|France\|Germany\|Spain	3
United States\|New Zealand	3
Bangladesh	2
Belgium\|Czechia	2
Belgium\|Germany\|United Kingdom	2
Belgium\|Netherlands	2
Bulgaria	2
Chile	2
China\|Hong Kong	2
Cuba	2
Czech Republic	2
Czech Republic\|Malaysia\|Spain	2
Kazakhstan	2
Moldova, Republic of	2
Philippines\|Thailand	2
Rwanda	2
Saudi Arabia	2
South Africa	2
United States\|Australia\|Canada\|Korea, Republic of\|New Zealand	2
United States\|Canada\|Hong Kong\|New Zealand\|United Kingdom	2
United States\|France\|Puerto Rico	2
United States\|Germany	2
United States\|New Zealand\|Singapore\|Taiwan	2
Algeria\|Australia\|Austria\|Belgium\|Bulgaria\|Canada\|Denmark\|Finland\|France\|Germany\|Greece\|Ireland\|Israel\|Italy\|Mexico\|Netherlands\|Norway\|Poland\|Portugal\|Romania\|Russian Federation\|Saudi Arabia\|Spain\|Sweden\|Switzerland\|Turkey\|United Kingdom	1
Argentina\|Brazil\|Germany\|Thailand	1
Argentina\|United States\|Australia\|Belgium\|Canada\|France\|Germany\|Hong Kong\|Hungary\|Italy\|Korea, Republic of\|Mexico\|Poland\|Puerto Rico\|Romania\|Russian Federation\|Spain\|Taiwan\|Thailand\|United Kingdom\|Vietnam	1
Australia\|Argentina\|Canada\|Mexico\|New Zealand\|Thailand	1
Australia\|Belgium	1
Australia\|Belgium\|Spain	1
Australia\|Belgium\|Ukraine	1
Australia\|Brazil\|France\|Poland\|Russian Federation\|Spain\|Sweden\|United Kingdom	1
Australia\|Bulgaria\|China\|Hong Kong\|Korea, Republic of\|New Zealand\|Singapore\|Taiwan\|Thailand	1
Australia\|Canada\|Czech Republic\|France\|Germany\|Israel\|Poland\|Romania	1
Australia\|Canada\|France\|Germany\|Greece\|India\|Italy\|Poland\|Spain\|Taiwan\|Thailand\|United Kingdom	1
Australia\|Canada\|Israel\|New Zealand\|Spain\|United Kingdom	1
Australia\|Czech Republic\|Germany\|Italy\|Netherlands\|Switzerland\|United Kingdom	1
Australia\|France\|Germany\|Italy\|Spain\|United Kingdom	1
Australia\|Germany\|Poland\|Romania\|Spain\|Taiwan	1
Australia\|Hong Kong\|Korea, Republic of\|New Zealand\|Singapore\|Taiwan\|Thailand	1
Australia\|Hong Kong\|Korea, Republic of\|New Zealand\|Thailand	1
Australia\|Hong Kong\|Korea, Republic of\|Taiwan\|United Kingdom	1
Australia\|Hong Kong\|New Zealand	1
Australia\|New Zealand\|United Kingdom	1
Austria\|Belgium\|Denmark\|Iceland	1
Austria\|Belgium\|France\|Germany\|Japan\|Portugal\|Romania\|Russian Federation\|Spain\|Switzerland\|United Kingdom	1
Austria\|Belgium\|France\|Germany\|Netherlands\|Spain	1
Austria\|Belgium\|France\|Germany\|Spain\|United Kingdom	1
Austria\|Brazil\|France\|Greece\|Indonesia\|Italy\|Turkey\|United Arab Emirates	1
Austria\|France\|Germany\|United Kingdom	1
Austria\|Germany\|Hungary\|Poland\|Romania\|Spain	1
Belarus\|India\|Russian Federation\|Thailand	1
Belgium\|Bulgaria\|France\|Georgia\|Germany\|Malaysia\|Moldova, Republic of\|Romania\|Spain\|Taiwan	1
Belgium\|Canada	1
Belgium\|Canada\|Germany\|Poland\|Singapore\|Spain	1
Belgium\|Czech Republic	1
Belgium\|Czechia\|Germany	1
Belgium\|France\|Germany\|Hungary\|Spain\|United Kingdom	1
Belgium\|France\|Germany\|Italy\|Poland\|Romania\|Spain	1
Belgium\|France\|Germany\|Italy\|Poland\|Spain\|United Kingdom	1
Belgium\|France\|Germany\|Netherlands\|Poland\|United Kingdom	1
Belgium\|Germany\|Hungary\|Ireland\|Luxembourg\|Portugal\|Russian Federation\|United Kingdom	1
Belgium\|Germany\|Philippines\|United Kingdom	1
Belgium\|Germany\|Poland\|United Kingdom	1
Belgium\|Germany\|Thailand	1
Belgium\|Mauritius\|Moldova, Republic of	1
Belgium\|Moldova, Republic of	1
Brazil\|United States\|Australia\|Canada\|China\|France\|Germany\|Israel\|Korea, Republic of\|New Zealand\|Poland\|Puerto Rico\|Singapore\|Switzerland\|Taiwan\|Thailand\|United Kingdom	1
Bulgaria\|China\|Hong Kong\|Korea, Republic of\|New Zealand\|Poland\|Taiwan\|United Kingdom	1
Bulgaria\|Former Yugoslavia	1
Bulgaria\|Hong Kong\|Italy\|Netherlands\|New Zealand\|Taiwan\|Thailand\|United Kingdom	1
Bulgaria\|Israel\|Romania	1
Bulgaria\|Romania	1
Cambodia	1
Cameroon\|CÃ´te D’Ivoire\|Senegal	1
Canada\|China\|France\|Hong Kong\|Korea, Republic of\|New Zealand\|Spain\|Taiwan\|Thailand\|United Kingdom	1
Canada\|France\|Germany	1
Canada\|Germany	1
Canada\|Hong Kong\|Korea, Republic of\|Taiwan	1
Canada\|Korea, Republic of\|Taiwan	1
Canada\|Moldova, Republic of\|Ukraine	1
Canada\|Netherlands	1
Canada\|United Kingdom	1
Canada\|United States\|Australia\|Austria\|Belgium\|France\|Germany\|New Zealand\|Poland\|Puerto Rico\|Russian Federation\|Spain\|United Kingdom	1
China\|Hong Kong\|Japan\|Korea, Republic of\|Philippines\|Singapore	1
China\|Korea, Republic of\|Russian Federation	1
China\|Korea, Republic of\|Singapore	1
China\|Netherlands	1
China\|Netherlands\|Poland\|Romania\|Turkey	1
China\|United Kingdom	1
Colombia	1
Congo, The Democratic Republic of the	1
Czech Republic\|France\|Germany\|Italy\|Poland\|Spain\|Sweden\|United Kingdom	1
Czech Republic\|Korea, Republic of\|Mexico	1
Czechia\|Slovakia	1
Estonia\|Latvia\|Lithuania	1
Finland	1
Finland\|Sweden	1
France\|Denmark\|United States\|Australia\|Austria\|Belgium\|Canada\|Germany\|New Zealand\|Norway\|Poland\|Russian Federation\|Spain	1
France\|Georgia\|Moldova, Republic of	1
France\|Germany\|Greece\|Italy\|Spain	1
France\|Germany\|Italy\|Netherlands\|Poland\|Romania\|Spain	1
France\|Germany\|United States\|Belgium\|Brazil\|Canada\|Greece\|Italy\|Portugal\|Spain\|Sweden\|Switzerland\|Turkey\|United Kingdom	1
France\|Italy\|Spain\|United Kingdom	1
France\|Moldova, Republic of\|Romania	1
France\|Netherlands\|Poland	1
France\|New Zealand\|Poland	1
France\|Spain	1
France\|Sweden\|United Kingdom	1
France\|United States\|Belgium\|Brazil\|Canada\|Denmark\|Germany\|Hungary\|Netherlands\|Poland\|Puerto Rico\|Romania\|Russian Federation\|Sweden\|United Kingdom	1
Germany\|Greece\|Romania	1
Germany\|Hong Kong\|Korea, Republic of\|New Zealand\|Singapore\|United Kingdom	1
Germany\|Israel\|Mexico\|United States\|Argentina\|Australia\|Austria\|Belgium\|Brazil\|Bulgaria\|Canada\|France\|Netherlands\|New Zealand\|Poland\|Portugal\|Puerto Rico\|Romania\|Russian Federation\|Spain\|Ukraine\|United Kingdom	1
Germany\|Netherlands	1
Germany\|Poland\|Spain	1
Germany\|Poland\|Sweden\|United Kingdom	1
Germany\|Russian Federation	1
Germany\|United Kingdom	1
Germany\|United States\|Argentina\|Belgium\|Chile\|Egypt\|Estonia\|France\|Greece\|Italy\|Kuwait\|Latvia\|Lebanon\|Lithuania\|Macedonia, The Former Yugoslav Republic of\|Mexico\|Oman\|Pakistan\|Peru\|Portugal\|Qatar\|Romania\|Serbia\|Slovakia\|Sweden\|Switzerland\|Syrian Arab Republic\|Taiwan\|Turkey\|United Arab Emirates\|Venezuela	1
Germany\|United States\|Australia\|Austria\|Canada\|France\|Italy\|Puerto Rico\|Spain\|United Kingdom	1
Greece\|Austria\|Bulgaria\|Germany\|Italy\|Russian Federation\|Spain\|Turkey	1
Hong Kong\|Korea, Republic of	1
Hong Kong\|Korea, Republic of\|Malaysia\|New Zealand\|Singapore\|Taiwan	1
Hong Kong\|Korea, Republic of\|Singapore\|Taiwan\|Vietnam	1
Hong Kong\|New Zealand\|Singapore	1
Hong Kong\|Singapore\|Taiwan\|Thailand	1
Indonesia	1
Israel\|New Zealand\|Pakistan	1
Korea, Republic of\|Moldova, Republic of\|New Zealand\|Thailand\|Ukraine	1
Korea, Republic of\|Russian Federation\|Taiwan	1
Korea, Republic of\|Taiwan	1
Korea, Republic of\|Taiwan\|Thailand	1
Korea, Republic of\|United Kingdom	1
Lao People’s Democratic Republic\|Thailand	1
Lebanon	1
Mauritius\|United Kingdom	1
Morocco	1
Myanmar	1
Nepal	1
Panama	1
Puerto Rico\|Spain\|Sweden\|Poland\|United States\|Australia\|Austria\|Belgium\|Brazil\|Canada\|France\|Germany\|Israel\|Netherlands\|Switzerland\|United Kingdom	1
Romania	1
Russian Federation\|Sweden	1
Russian Federation\|United States\|Argentina\|Australia\|Belgium\|Chile\|Finland\|France\|Greece\|Hong Kong\|Italy\|Japan\|Korea, Republic of\|Mexico\|Netherlands\|New Zealand\|Singapore\|Taiwan\|United Kingdom	1
Slovakia	1
Spain\|Australia\|Canada\|Czechia\|Finland\|Italy	1
Spain\|Sweden\|Switzerland\|Romania\|United States\|Argentina\|Australia\|Austria\|Belgium\|Brazil\|Bulgaria\|Canada\|Czech Republic\|Denmark\|France\|Germany\|Greece\|Hungary\|Israel\|Norway\|Poland\|Portugal\|Puerto Rico\|United Kingdom	1
Spain\|Switzerland\|United Kingdom	1
Spain\|United States\|Australia\|Belgium\|Brazil\|Canada\|Czech Republic\|France\|Germany\|Hong Kong\|India\|Israel\|Italy\|Korea, Republic of\|Netherlands\|Pakistan\|Poland\|Puerto Rico\|Romania\|Russian Federation\|Slovakia\|Taiwan\|Thailand\|Ukraine\|United Kingdom	1
Taiwan\|United States\|Brazil\|Canada\|France\|Greece\|Hong Kong\|India\|Indonesia\|Philippines\|Poland\|Russian Federation\|Singapore\|South Africa\|Thailand\|Turkey\|United Kingdom	1
Thailand\|Australia\|Brazil\|China\|Hong Kong\|Korea, Republic of\|New Zealand\|Russian Federation\|Singapore\|Taiwan	1
Thailand\|Australia\|Hong Kong\|Korea, Republic of\|New Zealand	1
Turkey\|United States\|Austria\|Bulgaria\|Canada\|Czech Republic\|Germany\|Greece\|Hungary\|New Zealand\|Poland\|Romania\|Serbia\|Spain	1
United Kingdom\|United States\|Australia\|Bulgaria\|Canada\|Czech Republic\|France\|Germany\|Greece\|Italy\|Netherlands\|New Zealand\|Poland\|Spain\|Turkey	1
United States\|Argentina\|Australia\|Austria\|Brazil\|Canada\|Denmark\|France\|Germany\|Israel\|Italy\|Poland\|Russian Federation\|Spain\|Switzerland\|United Kingdom	1
United States\|Argentina\|Australia\|Austria\|Canada\|Denmark\|France\|Germany\|Greece\|Ireland\|Italy\|Korea, Republic of\|Mexico\|New Zealand\|Poland\|Spain\|Sweden\|Taiwan\|United Kingdom	1
United States\|Argentina\|Australia\|Austria\|Canada\|France\|Germany\|Israel\|Italy\|Poland\|Puerto Rico\|Spain\|United Kingdom	1
United States\|Argentina\|Australia\|Belgium\|Brazil\|Canada\|France\|Germany\|Italy\|Puerto Rico\|Russian Federation\|Spain\|United Kingdom	1
United States\|Argentina\|Australia\|Belgium\|Canada\|France\|Germany\|Hong Kong\|Hungary\|India\|Italy\|Korea, Republic of\|Mexico\|Poland\|Romania\|Russian Federation\|Spain\|Taiwan\|Thailand\|Turkey\|United Kingdom\|Vietnam	1
United States\|Argentina\|Australia\|Brazil\|Canada\|France\|India\|Italy\|Mexico\|Poland\|Russian Federation\|South Africa\|Turkey	1
United States\|Argentina\|Australia\|Brazil\|France\|Italy\|Korea, Republic of\|Spain\|Taiwan	1
United States\|Argentina\|Australia\|Canada\|France\|Israel\|Italy\|Poland\|Puerto Rico\|Russian Federation\|Spain\|United Kingdom	1
United States\|Argentina\|Austria\|Belgium\|Brazil\|Bulgaria\|France\|Germany\|Netherlands\|Poland\|Portugal\|Puerto Rico\|Slovakia\|Spain\|Turkey	1
United States\|Argentina\|Belgium\|Brazil\|Canada\|Korea, Republic of\|Taiwan\|United Kingdom	1
United States\|Argentina\|Belgium\|Canada\|Germany\|Greece\|India\|Israel\|Korea, Republic of\|Poland\|Romania\|Russian Federation\|Taiwan\|United Kingdom	1
United States\|Argentina\|Canada\|Puerto Rico	1
United States\|Argentina\|France\|Germany\|Hungary\|Spain	1
United States\|Australia\|Austria\|Belgium\|Brazil\|Canada\|Germany\|Mexico\|Puerto Rico\|Switzerland	1
United States\|Australia\|Austria\|Belgium\|Brazil\|France\|Germany\|Ireland\|Mexico\|Poland\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|France\|Germany\|Israel\|New Zealand\|Norway\|Poland\|Portugal\|Russian Federation\|United Kingdom	1
United States\|Australia\|Austria\|Brazil\|Canada\|France\|Germany\|Italy\|Mexico\|Poland\|Puerto Rico\|Spain\|United Kingdom	1
United States\|Australia\|Austria\|Canada\|France\|Germany\|Italy	1
United States\|Australia\|Austria\|Canada\|France\|Germany\|Italy\|Puerto Rico\|Spain	1
United States\|Australia\|Belgium\|Brazil\|Canada\|Czech Republic\|Egypt\|France\|Germany\|Greece\|India\|Israel\|Italy\|Korea, Republic of\|Pakistan\|Poland\|Puerto Rico\|Romania\|Russian Federation\|Slovakia\|Spain\|Taiwan\|Ukraine	1
United States\|Australia\|Belgium\|Bulgaria\|China\|Germany\|Israel\|Italy\|Poland\|Russian Federation\|Ukraine\|United Kingdom	1
United States\|Australia\|Belgium\|Canada\|France\|Germany\|Greece\|Italy\|New Zealand\|Portugal\|Spain\|United Kingdom	1
United States\|Australia\|Belgium\|Canada\|France\|Germany\|India\|Italy\|Korea, Republic of\|Poland\|Puerto Rico\|Taiwan\|Thailand\|United Kingdom	1
United States\|Australia\|Belgium\|Canada\|France\|New Zealand\|Singapore\|South Africa\|Vietnam	1
United States\|Australia\|Belgium\|Canada\|Germany\|New Zealand\|Puerto Rico\|United Kingdom	1
United States\|Australia\|Belgium\|France\|Germany\|Hungary\|Italy\|Poland\|Puerto Rico\|Romania\|Spain\|Taiwan\|Turkey\|United Kingdom	1
United States\|Australia\|Belgium\|Germany\|Italy\|Malaysia\|Romania\|Russian Federation\|Taiwan\|Turkey\|Ukraine\|United Kingdom	1
United States\|Australia\|Belgium\|Germany\|Puerto Rico\|Spain\|Taiwan	1
United States\|Australia\|Brazil\|Canada\|China\|Germany\|Korea, Republic of\|New Zealand\|Russian Federation\|Spain\|Sweden\|Switzerland\|United Kingdom	1
United States\|Australia\|Brazil\|Canada\|Greece\|Hong Kong\|India\|Indonesia\|Italy\|Korea, Republic of\|Malaysia\|Philippines\|Poland\|Russian Federation\|Singapore\|Taiwan\|Thailand\|Turkey	1
United States\|Australia\|Brazil\|China\|France\|Germany\|Hong Kong\|Korea, Republic of\|New Zealand\|Russian Federation\|Singapore\|Taiwan\|Thailand	1
United States\|Australia\|Brazil\|France\|Greece\|Italy\|Poland\|Puerto Rico\|Spain\|Taiwan\|United Kingdom	1
United States\|Australia\|Bulgaria\|Canada\|Czech Republic\|France\|Germany\|Greece\|Italy\|Netherlands\|New Zealand\|Poland\|Spain\|Turkey\|United Kingdom	1
United States\|Australia\|Canada\|China\|France\|Germany\|India\|Israel\|Korea, Republic of\|Latvia\|Malaysia\|New Zealand\|Poland\|Russian Federation\|Singapore\|Spain\|Taiwan\|Thailand\|Turkey\|United Kingdom\|Vietnam	1
United States\|Australia\|Canada\|China\|France\|Israel\|New Zealand\|Singapore\|Taiwan\|Thailand\|United Kingdom	1
United States\|Australia\|Canada\|China\|France\|Korea, Republic of\|Singapore\|Taiwan\|Thailand	1
United States\|Australia\|Canada\|Denmark\|France\|Italy	1
United States\|Australia\|Canada\|France	1
United States\|Australia\|Canada\|France\|Germany\|Greece\|Hong Kong\|India\|Italy\|Korea, Republic of\|Netherlands\|Poland\|Portugal\|Romania\|Singapore\|Spain\|Taiwan\|Turkey\|United Kingdom	1
United States\|Australia\|Canada\|France\|Germany\|Greece\|Italy\|Pakistan\|Spain	1
United States\|Australia\|Canada\|France\|Germany\|Hong Kong\|Italy\|Korea, Republic of\|Netherlands\|Singapore\|Taiwan	1
United States\|Australia\|Canada\|France\|Germany\|Hong Kong\|New Zealand\|Poland\|Singapore\|Taiwan\|United Kingdom	1
United States\|Australia\|Canada\|France\|Germany\|Italy\|New Zealand\|Puerto Rico\|Spain	1
United States\|Australia\|Canada\|France\|Germany\|New Zealand\|Puerto Rico\|Spain\|United Kingdom	1
United States\|Australia\|Canada\|France\|Germany\|New Zealand\|Switzerland\|United Kingdom	1
United States\|Australia\|Canada\|France\|New Zealand\|Poland\|Slovakia	1
United States\|Australia\|Canada\|France\|Puerto Rico	1
United States\|Australia\|Canada\|Germany\|Mexico\|New Zealand\|Puerto Rico\|Romania\|Russian Federation\|Spain\|Ukraine\|United Kingdom	1
United States\|Australia\|Canada\|Germany\|Netherlands\|New Zealand\|Switzerland\|United Kingdom	1
United States\|Australia\|Canada\|New Zealand	1
United States\|Australia\|Canada\|New Zealand\|Puerto Rico	1
United States\|Australia\|Canada\|New Zealand\|United Kingdom	1
United States\|Australia\|China\|Hong Kong\|Korea, Republic of\|New Zealand\|United Kingdom	1
United States\|Australia\|Germany\|New Zealand\|Poland	1
United States\|Australia\|Hong Kong\|New Zealand\|Philippines\|Singapore\|Taiwan\|Thailand	1
United States\|Australia\|New Zealand	1
United States\|Australia\|Puerto Rico	1
United States\|Austria\|Belgium\|Canada\|Czech Republic\|France\|Germany\|Italy\|Poland\|Spain\|United Kingdom	1
United States\|Austria\|Belgium\|Canada\|France\|Germany\|Japan\|Korea, Republic of\|Portugal\|Romania\|Russian Federation\|Spain\|Switzerland\|Taiwan\|United Kingdom	1
United States\|Austria\|Belgium\|Canada\|France\|Germany\|Japan\|Portugal\|Puerto Rico\|Spain\|Switzerland\|United Kingdom	1
United States\|Austria\|Belgium\|Canada\|France\|Switzerland\|United Kingdom	1
United States\|Austria\|Belgium\|France\|Germany\|Netherlands\|Poland\|United Kingdom	1
United States\|Austria\|Brazil\|Canada\|France\|Germany\|Italy\|Mexico\|Puerto Rico\|Spain\|United Kingdom	1
United States\|Austria\|Canada\|France\|Germany\|Netherlands\|Puerto Rico\|United Kingdom	1
United States\|Austria\|Canada\|France\|Germany\|Romania	1
United States\|Austria\|Canada\|France\|Germany\|Spain	1
United States\|Belgium	1
United States\|Belgium\|Brazil\|Canada\|China\|Czechia\|France\|Germany\|Hong Kong\|Italy\|Japan\|Korea, Republic of\|Malaysia\|Poland\|Russian Federation\|Spain\|Thailand\|Turkey\|United Kingdom	1
United States\|Belgium\|Brazil\|Canada\|Colombia\|France\|Germany\|Italy\|Korea, Republic of\|Russian Federation\|Spain\|Switzerland\|United Kingdom	1
United States\|Belgium\|Bulgaria\|France\|Germany\|Puerto Rico	1
United States\|Belgium\|Canada\|China\|France\|Germany\|Hong Kong\|Italy\|Japan\|Korea, Republic of\|Malaysia\|Poland\|Russian Federation\|Spain\|Taiwan\|Thailand\|Turkey\|Ukraine\|United Kingdom	1
United States\|Belgium\|Canada\|Czechia\|Denmark\|Germany\|Japan\|Netherlands\|Spain\|Sweden\|Switzerland\|United Kingdom	1
United States\|Belgium\|Canada\|France\|Germany\|Hungary\|Korea, Republic of\|Puerto Rico\|Spain	1
United States\|Belgium\|Canada\|France\|Germany\|Poland\|Russian Federation	1
United States\|Belgium\|Canada\|Germany\|Japan\|Puerto Rico\|Russian Federation\|Spain\|United Kingdom	1
United States\|Belgium\|Canada\|Hong Kong\|India\|Korea, Republic of\|New Zealand\|Romania\|Russian Federation\|Taiwan	1
United States\|Belgium\|Germany\|Italy\|Taiwan	1
United States\|Belgium\|Germany\|Puerto Rico\|Spain	1
United States\|Belgium\|Netherlands\|Puerto Rico	1
United States\|Brazil\|France\|Germany\|Italy\|Spain\|Switzerland\|United Kingdom	1
United States\|Brazil\|France\|New Zealand\|Sweden	1
United States\|Brazil\|Mexico\|Puerto Rico\|South Africa	1
United States\|Brazil\|South Africa	1
United States\|Bulgaria\|Canada\|Czechia\|France\|Greece\|Hungary\|Ireland\|Israel\|Italy\|Poland\|Portugal\|Puerto Rico\|Romania\|Russian Federation\|Spain\|Taiwan\|United Kingdom\|Vietnam	1
United States\|Bulgaria\|Canada\|France\|Germany\|Poland\|Puerto Rico\|Russian Federation\|Spain\|United Kingdom	1
United States\|Bulgaria\|France\|Poland\|Romania\|Spain\|Turkey	1
United States\|Canada\|China\|France	1
United States\|Canada\|France\|Germany\|Greece\|Italy\|Poland\|Singapore\|Spain\|Taiwan\|Turkey	1
United States\|Canada\|France\|Germany\|Italy\|Puerto Rico\|Spain	1
United States\|Canada\|France\|Germany\|Italy\|Spain\|United Kingdom	1
United States\|Canada\|France\|Germany\|Portugal\|Puerto Rico\|Spain\|United Kingdom	1
United States\|Canada\|Germany	1
United States\|Canada\|Germany\|Greece\|Italy\|Korea, Republic of\|Poland\|Puerto Rico\|Spain\|Sweden	1
United States\|Canada\|Germany\|Netherlands\|Puerto Rico	1
United States\|Canada\|Germany\|Poland\|United Kingdom	1
United States\|Canada\|Hong Kong\|Indonesia\|Philippines\|Singapore\|Taiwan\|Thailand	1
United States\|Canada\|Hong Kong\|Italy\|Korea, Republic of\|New Zealand\|Taiwan\|United Kingdom	1
United States\|Canada\|Hong Kong\|Italy\|Korea, Republic of\|Spain\|Taiwan\|United Kingdom	1
United States\|Canada\|Italy\|Korea, Republic of\|Netherlands\|New Zealand	1
United States\|Canada\|Italy\|Korea, Republic of\|New Zealand\|Romania	1
United States\|Canada\|Korea, Republic of\|Puerto Rico\|Taiwan	1
United States\|Canada\|New Zealand	1
United States\|Canada\|United Kingdom	1
United States\|China\|Korea, Republic of\|Singapore\|Taiwan	1
United States\|Czechia\|France\|Germany\|Hungary\|Poland\|Puerto Rico\|Spain\|United Kingdom	1
United States\|France	1
United States\|France\|Germany\|New Zealand	1
United States\|France\|Germany\|New Zealand\|Spain	1
United States\|France\|Germany\|Puerto Rico\|United Kingdom	1
United States\|France\|Greece\|Italy\|Puerto Rico\|Spain\|United Kingdom	1
United States\|Germany\|Netherlands\|Poland\|Puerto Rico\|Slovakia	1
United States\|Germany\|Spain\|United Kingdom	1
United States\|India\|Korea, Republic of\|Romania\|Taiwan	1
United States\|Japan\|Korea, Republic of\|Taiwan	1
United States\|Korea, Republic of\|Spain\|Thailand\|Turkey\|United Kingdom	1
United States\|New Zealand\|Spain	1
United States\|United Kingdom	1
Zambia	1

Sites per Study

Site_count	Study_Count
1	739
2	81
3	54
4	49
5	28
6	24
7	28
8	30
9	18
10	21
11	22
12	17
13	7
14	13
15	18
16	15
17	8
18	16
19	14
20	12
21	15
22	9
23	9
24	12
25	12
26	7
27	5
28	11
29	2
30	1
31	3
32	9
33	2
34	4
35	5
36	2
37	5
38	7
39	5
40	1
41	3
42	6
43	6
44	3
45	3
46	1
48	5
49	3
51	2
52	1
53	3
54	1
55	3
56	1
60	1
61	1
62	2
63	3
66	3
67	4
68	2
71	3
73	3
74	1
75	1
76	1
77	1
80	1
81	1
82	1
86	1
87	3
91	1
93	2
97	1
98	1
100	1
101	1
102	1
104	1
106	1
107	1
109	1
112	1
113	1
114	1
116	2
119	1
123	1
124	1
132	1
142	1
144	1
147	1
171	1
184	1
187	1
191	1
210	1
227	1

Phase

Phase	Study_Count
Phase 2	358
Phase 3	353
Phase 4	330
N/A	170
Phase 1	147
Phase 1/Phase 2	47
Phase 2/Phase 3	34
Early Phase 1	5

Number of Arms

Number_of_Arms	Count_of_Studies
1	314
2	526
3	197
4	114
5	37
6	41
7	14
8	16
9	7
10	9
11	2
12	5
13	1
14	2
18	2
20	1
22	2
NA	154

Number of Updates

Count of Versions	Count of Studies
1	123
2	150
3	110
4	115
5	99
6	99
7	62
8	66
9	60
10	54
11	38
12	26
13	35
14	29
15	23
16	14
17	13
18	21
19	13
20	13
21	15
22	14
23	7
24	9
25	6
26	17
27	12
28	10
29	7
30	5
31	8
32	8
33	4
34	5
35	8
36	5
37	9
38	3
39	3
40	5
41	2
42	9
43	2
44	5
45	3
46	4
47	1
48	3
49	4
50	2
51	3
52	2
53	3
54	1
55	1
57	1
58	2
59	3
60	1
61	1
62	2
64	3
65	1
66	3
68	1
69	1
71	1
72	1
73	1
74	2
75	1
76	2
77	1
78	1
80	2
81	1
82	1
83	1
84	1
85	7
87	2
88	1
89	2
90	2
91	4
92	2
93	1
94	1
97	1
99	1
101	1
103	3
110	1
117	1
121	1
125	1
134	2
150	2
161	1
173	1
254	1
589	1
904	1

Update History Change Type

Change Type	Count_of_Changes	Count_of_Studies	ratio
Study Status	20863	1321	15.793338
Contacts/Locations	7337	1150	6.380000
Recruitment Status	2579	1176	2.193027
Study Design	2211	1071	2.064426
Outcome Measures	1915	823	2.326853
Arms	1595	784	2.034439
Interventions	1595	784	2.034439
Study Description	1542	676	2.281065
None (earliest Version on record)	1444	1444	1.000000
Study Identification	1381	695	1.987050
Eligibility	1370	699	1.959943
Sponsor/Collaborators	1253	676	1.853550
More Information	1068	353	3.025496
Oversight	727	556	1.307554
References	661	422	1.566351
Conditions	524	331	1.583082
Results	476	476	1.000000
IPDSharing	297	228	1.302632
Baseline Characteristics	283	205	1.380488
Reported Adverse Events	245	183	1.338798
Participant Flow	205	167	1.227545
Results Submission Events	80	80	1.000000
Documents	70	65	1.076923

Enrollment Metrics by Phase

Measure	Early.Phase.1	N.A	Phase.1	Phase.1.Phase.2	Phase.2	Phase.2.Phase.3	Phase.3	Phase.4
Min.	22.0	2.000	4.00000	9.00000	2.0000	10.00	6.0000	5.000
1st Qu.	25.0	50.000	22.00000	30.00000	37.0000	66.50	100.0000	58.000
Median	26.0	136.000	37.00000	40.00000	75.0000	120.50	193.5000	135.000
Mean	35.4	1056.112	48.93878	61.33333	132.3598	219.50	354.0116	1572.846
3rd Qu.	52.0	309.000	60.00000	64.00000	154.0000	229.75	451.7500	308.000
Max.	52.0	50000.000	240.00000	548.00000	2000.0000	1224.00	5000.0000	221855.000

Trial Group Type

group_type	Group_Count
Experimental	2431
Active Comparator	618
Placebo Comparator	212
NA	154
Other	94
No Intervention	87
Sham Comparator	4

Intervention Model

intervention_model	Study_Count
Parallel Assignment	951
Single Group Assignment	416
NA	28
Crossover Assignment	19
Sequential Assignment	18
Factorial Assignment	12

Primary Purpose

primary_purpose	Study_Count
Treatment	1086
Prevention	227
NA	26
Diagnostic	23
Health Services Research	20
Other	20
Basic Science	17
Screening	16
Supportive Care	8
Device Feasibility	1

Observational Studies

Studies by Country

Country	Study_Count
United States	71
NA	65
China	38
France	21
Taiwan	15
Korea, Republic of	14
Spain	11
Australia	10
Japan	10
Germany	9
Netherlands	9
Canada	8
Egypt	8
Brazil	7
Hong Kong	6
India	6
United Kingdom	5
United States\|Puerto Rico	5
Austria	4
Denmark	4
Italy	4
Mexico	4
Russian Federation	4
Switzerland	4
United States\|Canada	4
Israel	3
Turkey	3
Zambia	3
Belgium	2
Bulgaria	2
Greece	2
Panama	2
Senegal	2
Singapore	2
Australia\|France\|Hong Kong\|Italy\|Korea, Republic of\|New Zealand\|Russian Federation\|Singapore\|Taiwan\|Thailand	1
Austria\|Bahrain\|Bangladesh\|Bosnia and Herzegovina\|Bulgaria\|China\|Egypt\|France\|Germany\|Hong Kong\|India\|Indonesia\|Ireland\|Jordan\|Korea, Republic of\|Lebanon\|Macedonia, The Former Yugoslav Republic of\|Morocco\|New Zealand\|Pakistan\|Poland\|Portugal\|Romania\|Saudi Arabia\|Thailand\|United Arab Emirates\|United Kingdom	1
Austria\|Belgium\|France\|Greece\|Israel\|Italy\|Poland\|Portugal\|Switzerland	1
Austria\|Brazil\|Canada\|Croatia\|France\|Hungary\|Macedonia, The Former Yugoslav Republic of\|Mexico\|Morocco\|Poland\|Romania\|Serbia\|Slovenia\|Sweden	1
Austria\|Bulgaria\|China\|France\|Germany\|Greece\|Italy\|Korea, Republic of\|New Zealand\|Poland\|Portugal\|Romania\|Taiwan\|Thailand\|United Kingdom	1
Belgium\|Egypt\|Estonia\|France\|Germany\|Greece\|Hungary\|Ireland\|Italy\|Kuwait\|Lebanon\|Macedonia, The Former Yugoslav Republic of\|Morocco\|Oman\|Pakistan\|Portugal\|Qatar\|Romania\|Saudi Arabia\|Serbia\|Sweden\|Switzerland\|Syrian Arab Republic\|Taiwan\|Turkey\|United Arab Emirates\|United Kingdom	1
Belgium\|France\|Germany\|Netherlands\|Switzerland\|United Kingdom	1
Belgium\|Ireland\|Italy\|United Kingdom	1
China\|United States\|Argentina\|Brazil\|Canada\|Colombia\|Czechia\|France\|Germany\|Greece\|India\|Italy\|Korea, Republic of\|Mexico\|Philippines\|Poland\|Portugal\|Romania\|Russian Federation\|Singapore\|Spain\|Taiwan\|Thailand\|Turkey	1
Colombia	1
Czech Republic	1
Ethiopia	1
France\|Italy	1
Gambia\|Senegal	1
Georgia	1
Hungary	1
Iceland	1
Kenya	1
Korea, Republic of\|Russian Federation	1
Kuwait\|Lebanon\|Albania\|Algeria\|Bahrain\|Belgium\|Bosnia and Herzegovina\|Brazil\|Egypt\|Greece\|Hungary\|India\|Iran, Islamic Republic of\|Italy\|Korea, Republic of\|Macedonia, The Former Yugoslav Republic of\|Morocco\|Pakistan\|Poland\|Portugal\|Qatar\|Romania\|Serbia\|Slovakia\|United Arab Emirates	1
Moldova, Republic of	1
Myanmar	1
Netherlands\|United Kingdom	1
Poland	1
Puerto Rico	1
Romania\|United States\|Argentina\|Australia\|Austria\|Belgium\|Canada\|Finland\|France\|Germany\|Greece\|Italy\|Korea, Republic of\|Mexico\|Netherlands\|New Zealand\|Poland\|Puerto Rico\|Spain	1
Romania\|United States\|Argentina\|Brazil\|China\|France\|Greece\|India\|Italy\|Peru\|Philippines\|Poland\|Russian Federation\|Singapore\|Spain\|Taiwan\|Thailand\|United Kingdom	1
Serbia	1
Slovenia	1
Sweden	1
Thailand	1
Uganda	1
Ukraine	1
United States\|Argentina\|Australia\|Brazil\|Canada\|Denmark\|France\|Germany\|Ireland\|Italy\|Japan\|Korea, Republic of\|Mexico\|Poland\|Puerto Rico\|Spain\|Sweden\|Taiwan\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|Czechia\|Estonia\|France\|Germany\|Italy\|Netherlands\|New Zealand\|Poland\|Puerto Rico\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Austria\|Canada\|Czechia\|Estonia\|France\|Germany\|Italy\|Netherlands\|New Zealand\|Poland\|Puerto Rico\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Bulgaria\|Canada\|Germany\|Hungary\|Italy\|New Zealand\|Romania\|Turkey	1
United States\|Canada\|Germany\|Puerto Rico	1
United States\|Egypt	1
Uzbekistan	1

Sites per Study

Site_count	Study_Count
1	283
2	19
3	10
4	9
5	4
6	5
7	4
8	3
9	5
10	3
11	4
12	2
14	1
16	1
17	1
18	2
19	2
21	2
22	1
25	1
26	2
27	2
28	1
30	1
33	1
34	1
37	2
39	1
43	1
45	2
46	1
53	1
57	1
58	1
59	1
61	1
66	1
70	1
72	1
74	1
75	1
84	1
86	1
88	1
90	1
101	1
104	1
106	1
125	1
156	1
161	1
170	1
249	1
261	1
266	1
272	1
290	1
323	1
325	1
388	1
402	1

Number of Updates

Count of Versions	Count of Studies
1	41
2	64
3	64
4	39
5	21
6	15
7	21
8	5
9	13
10	8
11	3
12	13
13	4
14	6
15	7
16	5
17	1
19	1
20	5
22	1
23	3
24	4
25	2
26	1
27	1
28	2
29	1
30	2
31	1
33	3
34	2
36	1
37	1
38	2
39	3
40	1
42	2
43	1
44	2
45	1
49	1
53	2
56	1
58	2
60	3
63	1
64	1
66	1
67	2
69	1
70	1
73	1
74	1
78	1
81	1
83	1
88	1
89	1
90	1
91	1
103	1
108	1
115	1
119	1
126	1
128	1
211	1
440	1
461	1

Update History Change Type

Change Type	Count_of_Changes	Count_of_Studies	ratio
Study Status	6052	366	16.535519
Contacts/Locations	1548	281	5.508897
Study Design	641	287	2.233449
Recruitment Status	549	290	1.893103
Study Description	549	159	3.452830
None (earliest Version on record)	407	407	1.000000
Eligibility	347	185	1.875676
Sponsor/Collaborators	234	148	1.581081
Outcome Measures	214	153	1.398693
Study Identification	211	143	1.475524
Groups	167	126	1.325397
Interventions	167	126	1.325397
Oversight	145	105	1.380952
More Information	124	36	3.444444
References	120	65	1.846154
Conditions	82	61	1.344262
Results	71	71	1.000000
IPDSharing	43	43	1.000000
Baseline Characteristics	28	19	1.473684
Documents	18	18	1.000000
Results Submission Events	13	13	1.000000
Participant Flow	11	9	1.222222
Reported Adverse Events	11	10	1.100000

Enrollment Metrics

Measure	Observational
Min	1.000
1st Qu	87.500
Median	300.000
Mean	4156.183
3rd Qu	881.000
Max	815000.000

Observation Model

observational_model	Study_Count
Cohort	256
Case-Only	42
NA	42
Other	22
Case-Control	19
Case Control	14
Ecologic or Community	8
Family-Based	2
Case-Crossover	1
Defined Population, Natural History	1

Time Perspective

time_perspective	Study_Count
Prospective	279
Retrospective	57
Cross-Sectional	30
NA	22
Other	18
Longitudinal, Prospective	1

Registries

Studies by Country

Country	Study_Count
China	7
NA	4
Korea, Republic of	2
Spain	2
United States	2
Argentina\|Austria\|Belarus\|Belgium\|Bosnia and Herzegovina\|Croatia\|Czechia\|Denmark\|Estonia\|Finland\|France\|Georgia\|Germany\|Greece\|Hungary\|Iceland\|Ireland\|Israel\|Italy\|Latvia\|Lithuania\|Luxembourg\|Netherlands\|Norway\|Poland\|Portugal\|Romania\|Russian Federation\|Serbia\|Slovakia\|Slovenia\|Spain\|Sweden\|Switzerland\|Ukraine\|United Kingdom	1
Austria\|Belgium\|Brazil\|Georgia\|Germany\|Greece\|Italy\|Moldova, Republic of\|Pakistan\|Romania\|Spain\|Vietnam	1
Cameroon	1
Chile	1
Egypt	1
France	1
Germany	1
Italy	1
Japan	1
Switzerland	1
United States\|Australia\|Belgium\|Germany\|Italy\|New Zealand\|Russian Federation\|United Kingdom	1
United States\|Australia\|Canada\|France\|Germany\|Italy\|New Zealand\|Puerto Rico\|Spain\|United Kingdom	1
United States\|Canada	1
United States\|Puerto Rico	1

Sites per Study

Site_count	Study_Count
1	20
3	1
13	1
15	1
18	2
27	1
30	1
45	1
48	1
110	1
138	1

Number of Updates

Count of Versions	Count of Studies
1	9
2	7
3	3
5	4
6	1
7	1
10	2
14	1
25	1
26	1
35	1

Update History Change Type

Change Type	Count_of_Changes	Count_of_Studies	ratio
Study Status	154	22	7.000000
Contacts/Locations	66	18	3.666667
None (earliest Version on record)	31	31	1.000000
Recruitment Status	21	14	1.500000
Study Design	21	12	1.750000
Outcome Measures	13	10	1.300000
Study Description	12	8	1.500000
Eligibility	8	5	1.600000
Oversight	7	7	1.000000
Sponsor/Collaborators	7	6	1.166667
Study Identification	6	5	1.200000
Groups	4	4	1.000000
Interventions	4	4	1.000000
Documents	3	3	1.000000
Results	3	3	1.000000
IPDSharing	2	2	1.000000
References	2	2	1.000000
Conditions	1	1	1.000000

Enrollment Metrics

Measure	Registries
Min	54.00
1st Qu	315.50
Median	500.00
Mean	8211.29
3rd Qu	1304.50
Max	200000.00

Registry Model

observational_model	Study_Count
Cohort	24
Case-Control	3
Case-Crossover	1
Case-Only	1
Other	1
NA	1

Time Perspective

time_perspective	Study_Count
Prospective	24
Cross-Sectional	3
Other	3
NA	1

Follow-up

target_duration	Study_Count
5 Years	7
10 Years	4
1 Year	3
1 Day	2
24 Weeks	2
10 Months	1
144 Weeks	1
2 Weeks	1
2 Years	1
20 Years	1
3 Months	1
3 Years	1
30 Years	1
4 Years	1
48 Weeks	1
6 Months	1
62 Months	1
64 Weeks	1

intervention_type	Study_Count
Drug	805
Drug\|placebo	218
Biological	196
Other	37
Behavioral	34
Biological\|Drug	31
Biological\|Drug\|placebo	22
Biological\|placebo	13
Procedure	13
Dietary Supplement	11
Device	10
Drug\|Other	6
Behavioral\|Other	5
Biological\|Other	5
Device\|Drug	5
Biological\|Procedure	4
Diagnostic Test	4
Dietary Supplement\|placebo	4
Other\|Procedure	3
Behavioral\|Biological	2
Behavioral\|Drug	2
Dietary Supplement\|Drug	2
Drug\|Procedure	2
Behavioral\|Diagnostic Test	1
Biological\|Drug\|Other	1
Biological\|Drug\|Procedure	1
Biological\|Other\|placebo	1
Device\|Other	1
Diagnostic Test\|Drug	1
Dietary Supplement\|Drug\|Procedure	1
Dietary Supplement\|Other	1
Drug\|Other\|Procedure	1
Genetic	1

Site_count	Study_Count
1	739
2	81
3	54
4	49
5	28
6	24
7	28
8	30
9	18
10	21
11	22
12	17
13	7
14	13
15	18
16	15
17	8
18	16
19	14
20	12
21	15
22	9
23	9
24	12
25	12
26	7
27	5
28	11
29	2
30	1
31	3
32	9
33	2
34	4
35	5
36	2
37	5
38	7
39	5
40	1
41	3
42	6
43	6
44	3
45	3
46	1
48	5
49	3
51	2
52	1
53	3
54	1
55	3
56	1
60	1
61	1
62	2
63	3
66	3
67	4
68	2
71	3
73	3
74	1
75	1
76	1
77	1
80	1
81	1
82	1
86	1
87	3
91	1
93	2
97	1
98	1
100	1
101	1
102	1
104	1
106	1
107	1
109	1
112	1
113	1
114	1
116	2
119	1
123	1
124	1
132	1
142	1
144	1
147	1
171	1
184	1
187	1
191	1
210	1
227	1

Count of Versions	Count of Studies
1	123
2	150
3	110
4	115
5	99
6	99
7	62
8	66
9	60
10	54
11	38
12	26
13	35
14	29
15	23
16	14
17	13
18	21
19	13
20	13
21	15
22	14
23	7
24	9
25	6
26	17
27	12
28	10
29	7
30	5
31	8
32	8
33	4
34	5
35	8
36	5
37	9
38	3
39	3
40	5
41	2
42	9
43	2
44	5
45	3
46	4
47	1
48	3
49	4
50	2
51	3
52	2
53	3
54	1
55	1
57	1
58	2
59	3
60	1
61	1
62	2
64	3
65	1
66	3
68	1
69	1
71	1
72	1
73	1
74	2
75	1
76	2
77	1
78	1
80	2
81	1
82	1
83	1
84	1
85	7
87	2
88	1
89	2
90	2
91	4
92	2
93	1
94	1
97	1
99	1
101	1
103	3
110	1
117	1
121	1
125	1
134	2
150	2
161	1
173	1
254	1
589	1
904	1

Site_count	Study_Count
1	283
2	19
3	10
4	9
5	4
6	5
7	4
8	3
9	5
10	3
11	4
12	2
14	1
16	1
17	1
18	2
19	2
21	2
22	1
25	1
26	2
27	2
28	1
30	1
33	1
34	1
37	2
39	1
43	1
45	2
46	1
53	1
57	1
58	1
59	1
61	1
66	1
70	1
72	1
74	1
75	1
84	1
86	1
88	1
90	1
101	1
104	1
106	1
125	1
156	1
161	1
170	1
249	1
261	1
266	1
272	1
290	1
323	1
325	1
388	1
402	1

Count of Versions	Count of Studies
1	41
2	64
3	64
4	39
5	21
6	15
7	21
8	5
9	13
10	8
11	3
12	13
13	4
14	6
15	7
16	5
17	1
19	1
20	5
22	1
23	3
24	4
25	2
26	1
27	1
28	2
29	1
30	2
31	1
33	3
34	2
36	1
37	1
38	2
39	3
40	1
42	2
43	1
44	2
45	1
49	1
53	2
56	1
58	2
60	3
63	1
64	1
66	1
67	2
69	1
70	1
73	1
74	1
78	1
81	1
83	1
88	1
89	1
90	1
91	1
103	1
108	1
115	1
119	1
126	1
128	1
211	1
440	1
461	1

Site_count	Study_Count
1	739
2	81
3	54
4	49
5	28
6	24
7	28
8	30
9	18
10	21
11	22
12	17
13	7
14	13
15	18
16	15
17	8
18	16
19	14
20	12
21	15
22	9
23	9
24	12
25	12
26	7
27	5
28	11
29	2
30	1
31	3
32	9
33	2
34	4
35	5
36	2
37	5
38	7
39	5
40	1
41	3
42	6
43	6
44	3
45	3
46	1
48	5
49	3
51	2
52	1
53	3
54	1
55	3
56	1
60	1
61	1
62	2
63	3
66	3
67	4
68	2
71	3
73	3
74	1
75	1
76	1
77	1
80	1
81	1
82	1
86	1
87	3
91	1
93	2
97	1
98	1
100	1
101	1
102	1
104	1
106	1
107	1
109	1
112	1
113	1
114	1
116	2
119	1
123	1
124	1
132	1
142	1
144	1
147	1
171	1
184	1
187	1
191	1
210	1
227	1

Count of Versions	Count of Studies
1	123
2	150
3	110
4	115
5	99
6	99
7	62
8	66
9	60
10	54
11	38
12	26
13	35
14	29
15	23
16	14
17	13
18	21
19	13
20	13
21	15
22	14
23	7
24	9
25	6
26	17
27	12
28	10
29	7
30	5
31	8
32	8
33	4
34	5
35	8
36	5
37	9
38	3
39	3
40	5
41	2
42	9
43	2
44	5
45	3
46	4
47	1
48	3
49	4
50	2
51	3
52	2
53	3
54	1
55	1
57	1
58	2
59	3
60	1
61	1
62	2
64	3
65	1
66	3
68	1
69	1
71	1
72	1
73	1
74	2
75	1
76	2
77	1
78	1
80	2
81	1
82	1
83	1
84	1
85	7
87	2
88	1
89	2
90	2
91	4
92	2
93	1
94	1
97	1
99	1
101	1
103	3
110	1
117	1
121	1
125	1
134	2
150	2
161	1
173	1
254	1
589	1
904	1

Site_count	Study_Count
1	283
2	19
3	10
4	9
5	4
6	5
7	4
8	3
9	5
10	3
11	4
12	2
14	1
16	1
17	1
18	2
19	2
21	2
22	1
25	1
26	2
27	2
28	1
30	1
33	1
34	1
37	2
39	1
43	1
45	2
46	1
53	1
57	1
58	1
59	1
61	1
66	1
70	1
72	1
74	1
75	1
84	1
86	1
88	1
90	1
101	1
104	1
106	1
125	1
156	1
161	1
170	1
249	1
261	1
266	1
272	1
290	1
323	1
325	1
388	1
402	1

Count of Versions	Count of Studies
1	41
2	64
3	64
4	39
5	21
6	15
7	21
8	5
9	13
10	8
11	3
12	13
13	4
14	6
15	7
16	5
17	1
19	1
20	5
22	1
23	3
24	4
25	2
26	1
27	1
28	2
29	1
30	2
31	1
33	3
34	2
36	1
37	1
38	2
39	3
40	1
42	2
43	1
44	2
45	1
49	1
53	2
56	1
58	2
60	3
63	1
64	1
66	1
67	2
69	1
70	1
73	1
74	1
78	1
81	1
83	1
88	1
89	1
90	1
91	1
103	1
108	1
115	1
119	1
126	1
128	1
211	1
440	1
461	1

hepatitis a

Study Counts

Studies over Time

Interventional Trials

Intervention Type

Count of Studies by Intervention (normalized and mapped)

Interventions over Time

Studies by Country

Sites per Study

Phase

Number of Arms

Number of Updates

Update History Change Type

Enrollment Metrics by Phase

Trial Group Type

Intervention Model

Primary Purpose

Observational Studies

Studies by Country

Sites per Study

Number of Updates

Update History Change Type

Enrollment Metrics

Observation Model

Time Perspective

Registries

Studies by Country

Sites per Study

Number of Updates

Update History Change Type

Enrollment Metrics

Registry Model

Time Perspective

Follow-up

Site_count	Study_Count
1	739
2	81
3	54
4	49
5	28
6	24
7	28
8	30
9	18
10	21
11	22
12	17
13	7
14	13
15	18
16	15
17	8
18	16
19	14
20	12
21	15
22	9
23	9
24	12
25	12
26	7
27	5
28	11
29	2
30	1
31	3
32	9
33	2
34	4
35	5
36	2
37	5
38	7
39	5
40	1
41	3
42	6
43	6
44	3
45	3
46	1
48	5
49	3
51	2
52	1
53	3
54	1
55	3
56	1
60	1
61	1
62	2
63	3
66	3
67	4
68	2
71	3
73	3
74	1
75	1
76	1
77	1
80	1
81	1
82	1
86	1
87	3
91	1
93	2
97	1
98	1
100	1
101	1
102	1
104	1
106	1
107	1
109	1
112	1
113	1
114	1
116	2
119	1
123	1
124	1
132	1
142	1
144	1
147	1
171	1
184	1
187	1
191	1
210	1
227	1

Count of Versions	Count of Studies
1	123
2	150
3	110
4	115
5	99
6	99
7	62
8	66
9	60
10	54
11	38
12	26
13	35
14	29
15	23
16	14
17	13
18	21
19	13
20	13
21	15
22	14
23	7
24	9
25	6
26	17
27	12
28	10
29	7
30	5
31	8
32	8
33	4
34	5
35	8
36	5
37	9
38	3
39	3
40	5
41	2
42	9
43	2
44	5
45	3
46	4
47	1
48	3
49	4
50	2
51	3
52	2
53	3
54	1
55	1
57	1
58	2
59	3
60	1
61	1
62	2
64	3
65	1
66	3
68	1
69	1
71	1
72	1
73	1
74	2
75	1
76	2
77	1
78	1
80	2
81	1
82	1
83	1
84	1
85	7
87	2
88	1
89	2
90	2
91	4
92	2
93	1
94	1
97	1
99	1
101	1
103	3
110	1
117	1
121	1
125	1
134	2
150	2
161	1
173	1
254	1
589	1
904	1

Site_count	Study_Count
1	283
2	19
3	10
4	9
5	4
6	5
7	4
8	3
9	5
10	3
11	4
12	2
14	1
16	1
17	1
18	2
19	2
21	2
22	1
25	1
26	2
27	2
28	1
30	1
33	1
34	1
37	2
39	1
43	1
45	2
46	1
53	1
57	1
58	1
59	1
61	1
66	1
70	1
72	1
74	1
75	1
84	1
86	1
88	1
90	1
101	1
104	1
106	1
125	1
156	1
161	1
170	1
249	1
261	1
266	1
272	1
290	1
323	1
325	1
388	1
402	1

Count of Versions	Count of Studies
1	41
2	64
3	64
4	39
5	21
6	15
7	21
8	5
9	13
10	8
11	3
12	13
13	4
14	6
15	7
16	5
17	1
19	1
20	5
22	1
23	3
24	4
25	2
26	1
27	1
28	2
29	1
30	2
31	1
33	3
34	2
36	1
37	1
38	2
39	3
40	1
42	2
43	1
44	2
45	1
49	1
53	2
56	1
58	2
60	3
63	1
64	1
66	1
67	2
69	1
70	1
73	1
74	1
78	1
81	1
83	1
88	1
89	1
90	1
91	1
103	1
108	1
115	1
119	1
126	1
128	1
211	1
440	1
461	1